A developed country (or industrialized country, high-income country, more economically developed country (MEDC)) is a sovereign state that has a high quality of life, developed economy, and advanced technological infrastructure relative to other less industrialized nations.
According to the above table, Turkey has two pending recognitions yet to fulfill. That means Turkey is not an 'undisputed' developed country.
Why couldn't Turkey become a developed country even 98 years after becoming a republic (or, Westernization by Mustafa Kemal) even though Turkey has had very close relations with Europe and was not part of the Warsaw pact?
What is the core reason?